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Michael Dubrovsky
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El Cerrito, CA, US
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last 30 patents
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Patent Grant
Removal of oily residues from aqueous waste streams
Patent number
5,269,934
Issue date
Dec 14, 1993
Chevron Research and Technology Company
Michael Dubrovsky
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Processes for recovering precious metals
Patent number
5,238,662
Issue date
Aug 24, 1993
Chevron Research Company
Michael Dubrovsky
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for removing dissolved organics from aqueous compositions
Patent number
5,236,590
Issue date
Aug 17, 1993
Chevron Research and Technology Company
Steven F. Sciamanna
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process for recovering metals from refractory ores
Patent number
5,104,445
Issue date
Apr 14, 1992
Chevron Research and Technology Co.
Michael Dubrovsky
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for recovering precious metals from sulfide ores
Patent number
5,074,910
Issue date
Dec 24, 1991
Chevron Research and Technology Company
Michael Dubrovsky
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Electrolytic reduction of cobaltic ammine
Patent number
4,600,483
Issue date
Jul 15, 1986
Chevron Research Company
Gale L. Hubred
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR